Automatic cut-off for power-pumps.



A. A. BOWSER.

AUTOMATIC CUT-OFF POR.POWER PUMPS.

APPLICATION FILED MAB. 1, 1909.

1,049,382, Patented Jan. 7, 1913.

3 SHEETS-SHEET 1.

A. A. BOWSER.

AUTOMATIG GUT-OFF FOB POWER PUMPS APPLIOATION FILED 11,511.1, 1909.

1,049,332, Panama Jan. 7, 1913.

3 SHEETS-SHEET 2.

YW l

' Offs, for Power# uu-ips, of which the fol-- UNITED STATES PATENT OFFICE.Y

LLEN a. BowsER, or FORT WAYNE, INDIANA, AssIsNoR To s. r. BowsER & co.,

INconPoRATEnoF Fon'r WAYNE, INDIANA, a coRPoRA'rIoNoF INDIANA.

'AUTQMATIC CUT-oFF ron POWER-PUMPS.

T 0 all jwhom/it may concern:

Be it kn'ownthat I,'AL I' .EN. A. Bowser, a' citizen of the United States, residing at Fort faynegjmtthe vcounty of Allen and State of IndmTze'have invented certain new and useful Iinp'ro ements in Automatic Cutlowingisl a specification.

, -This invention .lrelates to improvements in vautomatic cut-offs for power pumps and the primary object of-the invention is to provide improved means for automatically cut- A .ting off thepower from the pump or throwtlOIL'w ...To theattainment of these ends and the,

ing 4the pump out of action 'when the dis charge of liquid .'from the/pump is cut off.

-A further object-.is to provide improved -means whereby the action of the pressure created upon the liquid when the discharge of the liquidis cut oli" will automatically :throw the pump out of action, and improved means for automatically coupling the pump and power mechanism when the discharge outlet from the pump is open.

'Afurther object is to provide improved mechanism of this character which will be vsimple,durable, cheap and compact' in constructlomand effective andeicient in operaaccomp'lishment of other new anduseful-obseveralvparts ,hereinafter more fully described and claimed and shown in the accompanying drawings,`illustrating an em-l clutch members. Fig. 5 is a view similar to bodiment of the invention, vand inwhichproved mechanism'of this character constructed in accordance with the 'principles of this invention. Fig. --2 is a sectional v-iew .taken on line l2 2. Fig. 3 i's anv enlarged detail sectional view through the pumpand the discharge outlet ofthe pump., Fig. is a view,' partlyl in section, of one -of the Fig. 7 of the other clutch member.- 'A Fig. 6 is a` detail sectional viewon line 6-6 of Fig. 7. Fig.A .'I'is a View partly in section of the two clutchl members assembled and .the locking means for securing these parts to rotate'together. Fig.l 8 is a-detail view Y -of the clutch. locking bolt. Fig. '9 is an 'enlarged detail-*perspective view of the Wedge Specicationvof Letters Patent. ,Abpiicatioa med March 1, 1999., serialNoAeasu Patented Jari. 7,1913; 1

supporting the pump designated'generallyj by the reference numeral 16.v The base 10 is provided with another upright 17, whichA is spaced from the upright/11 and is provided with a bearing 18, which latter a-lines' with the bearings 12 and 13. Journal'ed in the alined bearings is a shaft 19 andmount'- ed for rotation upon the shaftibetween the bearings 13 and 18 is a pulley 20, to which is secured one member 21 of a clutch, which member is provided with a recess or aper-v ture 22 in the' face thereof, as shown more clearly in Fig. 5. A second clutch member 23 is secured to the shaft 19 for rotation therewith and-this member is provided with a circumferential groove 24- and a lo'ngitudinal aperture or recess 25 (see Fig. 4) which extends across and communicates with .the

circumferential groove 24i Y Slidingly7 mount-.1 ed in the recess or'aperture'25- isa locking pin or bolt 26, which is provided adjacentv one Aend with an open notch or. recessed porfv tionl 27, one edge of which is slightly inlclined "or beveled as at 28,-,shown' more clearly -in F ig. 7 of the drawings. This pin or bolt- 26 isof such a length thatit may be entirely seated within the aperture or recess 25. The clutch member 23 is also laterally from the pin or bolt 26 is a'Y lug or pin 31, which projects through the conhectf ing slot 30 and into the aperture or recess 25, thefree end of the pin or 'lug being adapted lto reciprocate in thev recess or slot 30 when the pin or bolt 26 is reciprocated in the manner to be set forth. Disposed within the aperture or recess 29 and between the.

bottom thereof and the pin orflug 31 is :i suitable yielding member 32, such as a coil spring or -he like und this member is adapted to exert its tensiflin upon the pin 3l to normally project the, free end of the pin or boit 2G beyond tlie fiiee of the eliite'h 19. A member 33 is iii-.united Jfor sliding 'movementin ii suitable support .iM- such iisv a bracket, which is `preferably secured to the upright 1'1 und the freieud of the inember is cut-awzir- :is u t- 35 to form n ,Lemicirculur recessed portion, for ii purpose to bevset; forth. A ,ioi'tion 'of the upper end of the iiieinber flis eut :muy or reduced, as :it 3G, to forni :i wedge-shaped portion 37. This member 33 isniouiit'ed .in Such, u

rel'ation'ii'itli respect to the eluteih.iiieiiiher 23 that 4the free extremity thereof will enter the circun'iterenti'ul groove 24 und the seini-cireulnr portion will sui'roiini'l the bottom of the circumferential f froore, fifi. 'llie specific coiistruction of this clutch :ind its operating' inechfiiiisun however, forms no purt of the present invention.

The brochet 34 is pro'iiidecl with ti lfiter- :illy projecting portion which forms 'zi closure for :icylinderor elui'ii'iber 39, which Vlutter muy be of any desired diiimeter und length, und. is pmvided with :i circu'u'ifereiitlnl projecting.[hinge l0 which is adapted to restzigziiust. the loiverfuce of t-lie projecting portion 38 of the bracket 34, to beclosed thereby7 und the cylinder may befheld u cjiiinst. di'spliiceiiient. iii :in v desired or suitAA :ible manner, such :is by iiiezins of cup screws or bolts .t-1, which pussjhrouc'h thc portion o'ti the bracket, 34 :ind the thingie 40. '.lhe c i'liuder il!) is i-ireferubly of :r length less thun the length of the spii-c'e between the toiii'i- 't'iieo of the projecting port-ion 38 of the bi'ueli'et. and the upper ii-ce of the bose 10 so that. when the cylinder is secured' in -posLtionQit will he supported'by the project.- -ing portion 3S :ind above the base 10, to

permit, the cylinder to be readily placed in position und :is readily removed when desired without.' disu'izintlling the bracket 34.

'lhc cylinder is preferably provided. With n reduced portion 42 adjacent its bottomfto forni :i ciiciui'iferentiiil shoulder 43, which :iets :is n stop for the piston 44 to hold the piston :ibove the bottom of the p cylinder. Ilie piston lltl is provided wit-h a piston rod 4t, wtiii-h extends through ii'siiitable adjust- :ihle bus-:hing 4.6 in the top of the. cylinder oriiied by the projecting portion 38 of the bracket :ind the, free e-Xtreifnihi of t-he`piston rod secured to the, member 33, preferably to the buse of sii-id member so that; when the vpiston 44 is reciprocated in the cylinder, the iiiemher il?, will be correspondingly reeasement with the lockingr the clutchmembers. v

suitable. ehistic iiieiiiher, such as' :i coil spring' J.:- or the like, surrounds the pistonpin or bolt 26 of rod -lJii-iiliiii thel tyl'ii-ider sothsit one ex- Y' treiiiity will rest iigiiin'st the. piston head,

:uid the other es-tifeiiiitr against the end of the iidiusiiihle bushing;- `1th,-wherebytlie'teiision ot the spring' t? may.' bevariedby aid-i jus-ting the bushing.

"the pun-.p lt muy-be. of any desired con-` struction but preferably comprises a casing ii'i'ihin'ii'hieli is rotiittiblr iiiouifited-:i hub or driiui 4S. 'lhis hub or drumffisfsecured to t.he-sli:i't`tt 1t) which projects into the pump eiisiiig :ind is preferably mounted :it one side or eccentric -to the center of thev casing, therebi' providingr :i communicating liquid passage -ttlbetwecii the inlet opening 50 and the dischnigg'e outlct'opening 51 of the pump l eiisiugl. ".lhe pump'is prcfcrubly provided' with .n plurulitiy of opi'iositely" disposed respective slot 5? in the drum to more the Vdizimetrif'ultr opposite blzide 4out-of its re? spec-tire slot :iudliii en'giigelrlclit with the diiiiiietiieiillv,` oinipositeuportion "of the wall 'of the puiniireiisiiigrr or bii'rrel s0 :is to. vform a wir.;r priijeet'iir;r :ieross thc space 49 within the pump (-:isiug' thereof :ind the peripherlv of the. druin';v

whieh' \\iii 1 y engages the liquidtoiidvzin'cefv the sun-ie :ind to' force. it-tlii'oiigh t-he diselizii- Lje outlet 5t of the pump cnsinffl .At the sume timethe r'ot-iitiion ot the drum' 4S :uid the wings 0r bludes 591- will Create asuction to'driiw the liquid into the inlet end 50 of the pump casing, i l

Connected to tl-.c outlet A5l of the p'iuilip cusing' is :i discharge Vpipe 55 witliii'i which und preferubliY :idjuceiit the puiiipf'ciisiiig is :iii oidiiiury cheek vulve ithwhieli will periiiid between the inner wallmit the liquid to [low through the pip'e :'5 -iii 'l one direction :ind prevent. it from'tluw-ing buck through the pipe iii the opposite direction` with the outlet pipehi is :i easing* orch'u-m- -lier 57, which preferzibly extends for` somedistinee beyond the .rupe :ind :in outlet'. pipe also luis coiiiiiiiiiiiention wil-h the.' pipe .\i'rziuged beyond the 'Hit-let. pipe '58":iiid

Supported h v and .eoii'iinuniciiting- Loaasae communicating with the dischar outlet-,j

pipe 55 is a dischargg faucet 59,'-the-outl'et of which is controlled' by 'a valve 60 adapted .to be operated by a suitablehandle 61. Obviously any form of mechanism maybe lprovided for cont-rolling the discharge outlet of the pipe 55 and the specific construction 'of this mechanism forms no part of the present application. g A

. The outlet pipev 58 which leads from the discharge outlet pipe 5 5 has communication with the bottom of-'the cylinder 39 below the circumferential shoulder 43.' The cylinder 39is provided-withA an outlet opening on the 'other side of the piston 44 andpreferably adjacent the top of vthe' cylinder.' Leading from this outlet opening is a pipe,

'62. which dischargesinto the inlet opening soas at 63. I

The normal tendency of the elastic mem-g ber or Spring 47-is lto move the piston toward the circumferential -shoulder 43 so as to move the member 33 out of operative position with relation to theA locking pin Aorbolt 26 of the clutch members to' permit v the clutch members' to be normally locked forv operation. The tension of" the spring or elastic member 47V is such that it Will resist any suction created by the pump 16 through the inlet opening 50 of the casing.

. In operation, power being applied to the pulley 2O and the clutch members being locked for rotation, the shaft 19 will rotate, the discharge faucet 59 being rst opened to permit the liquid to vbe discharged Atherefrom. So long as the outlet faucet 59 is open the liquid -will iiow through the Apump past the check valve 56 and out through the faucet. When the desired quantity of liquid has been discharged the operator closes the outlet end of the discharge pipe by ad-A justingthe valve- 60. The flow of liquidin the outlet pipe being thus checked, the liquid will accumulate 1n the pipe between the check valve 56 and the faucet. As theliquid accumulates, it will dow through the outlet 58 and also into the chamber- 57, The increased pressure thus exerted upon theliq- .uid will cause the liquid to iow through the pipe 58 and into the cylinder 39 below. the

-piston 44`and this pressure, acting upon the piston 44, will move the latter against the tension of the elastic member 47 to shift the member 33 into operative position with respect to the clutch locking pin 26 so that as the clutch members rotate, the Wedge-shaped portion 37 of the member 33 will Withdraw the locking pin/or bolt 26 out of engage-- mentwith the clutch member 2l to release the pulleyl 20 and thereby permit' the latter" Athe excess amount-fof liquid above the amount necessary to shift the piston 44, in the event that the member 33 should be shift/ed just as one of the blades` of the pump'is approachthe inlet end thereof, which would force 'fnextra amount of liquid through the outlet end-before the clutch members are released. When the outlet end of the discharge pipe .55 is again opened, the tension of the elastic to the opposite side thereof in the cylinder,

it will be discharged through the outlet pipe 62 and into the inlet end 50 of the pump casing 16.

`The check valve 56 is provided in order to prevent the pressure created upon the liquid in the'discharge fpipe, after the outlet .thereof has been closed, from forcing Ythe liquid back through the pump casing the pipe 62 into the cylinder 39.

In order that the invention might be fully understood, the details of the foregoin emdescribed, but

What is claimed as new is l. In a device of the character ldescribed,

the-combination of a dispensing pump pro.

vided with an inlet and an outlet, means for closing the outlet, a check valve in the out-V let,.means for operating the pump including and throughbodiment thereof have been thus speci ically Y clutch mechanism, a' cylinder, a plston rciprocable in the cylinder,l clutch' controlling means operativelyconnected with vthe piston, means `tending normally to move theV piston` in a direction to render the clutch active and the said controlling means inactive, a pipe communicating with the cylinder on one side of the piston and also having communication with the outlet of the pump at a point between the first said means and the charged by the pump willA enter the pipe after it'passes the said valve and-'when the outlet is closed and whereby pressure created upon the liquid in the cylinder and pipe vby the pump will move the piston against the `tension of the fourth recited means, lto -shift the said controlling means to render the clutdh inactive, and means connected with the cylinder on the other side cfmthe piston lsaid valve so that liquid which has been disand.. with the inletside of the pump: for' draining that side of the cylinder.

` 2; In a device of the'character described,

the combination of a dispensing. pump providedwith an inlet and an outlet, means for closing the outlet, a check valve in the outlet, means for operating thepump including clutch mechanism, a cylinder, a piston reciprocable in the cylinder, clutch controlling inea-ns` operativelycnneeted with `the pis- ,ton, means' tending norrally to move Athe one side of the pisfonand also having communicut-ion with the outlet of the pump it a point between the rst said means andthe saidvulve so that liqzid which has been `diS- charged by the pump will enter the pipe after it passes the said valveand when the outlet. is closed ind whereby pressure creaiedA upen the liquid in the cylinder and pipe by the pump will Inoye the pieton against the tension of the fourth recited means, to Shift the eaid controlling means to Arendeihe" clutch inaetivqnnd means cennecvted with the Cylinder on the other side of the piston and with vthe inlet side of the' pump for draining that side of the cylinder,

vname to this specification, in the presence of two subscribing witnesses, on this 23rd day A1 D. i909. e

ALLEN A.. BOlVSER. Titnesses 1H. M Bowsnn, S. B. BEGHTEL.

of February, 

